Robotic lawnmower deck



FIG. 1 is a perspective view of a robotic lawnmower deck, showing the new design;

FIG. 2 is a top view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a back view thereof;

FIG. 6 is a left side view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines in FIG. 7 are included for the purpose of illustrating portions of the robotic lawnmower deck and form no part of the claimed design. 

The ornamental design for a robotic lawnmower deck, as shown and described. 